<table border="1" mj_done="true">
    <thead>
    <tr>
        <th>序号</th>
        <th>编号</th>
        <th>题目</th>
        <th>通过率</th>
        <th>难度</th>
        <th>出题指数</th>
        <th>出现频率</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td>1</td>
        <td>1</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum/">两数之和</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.039</td>
    </tr>
    <tr>
        <td>2</td>
        <td>15</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum/">三数之和</a></td>
        <td>25.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.842</td>
    </tr>
    <tr>
        <td>3</td>
        <td>301</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-invalid-parentheses/">删除无效的括号</a></td>
        <td>45.1%</td>
        <td>困难</td>
        <td>5</td>
        <td>4.601</td>
    </tr>
    <tr>
        <td>4</td>
        <td>67</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-binary/">二进制求和</a></td>
        <td>52.2%</td>
        <td>简单</td>
        <td>5</td>
        <td>2.521</td>
    </tr>
    <tr>
        <td>5</td>
        <td>273</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-english-words/">整数转换英文表示</a></td>
        <td>26.1%</td>
        <td>困难</td>
        <td>5</td>
        <td>4.916</td>
    </tr>
    <tr>
        <td>6</td>
        <td>283</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/move-zeroes/">移动零</a></td>
        <td>59.2%</td>
        <td>简单</td>
        <td>5</td>
        <td>2.154</td>
    </tr>
    <tr>
        <td>7</td>
        <td>91</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways/">解码方法</a></td>
        <td>23.0%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.536</td>
    </tr>
    <tr>
        <td>8</td>
        <td>10</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/regular-expression-matching/">正则表达式匹配</a></td>
        <td>26.0%</td>
        <td>困难</td>
        <td>5</td>
        <td>2.245</td>
    </tr>
    <tr>
        <td>9</td>
        <td>297</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree/">二叉树的序列化与反序列化</a>
        </td>
        <td>44.2%</td>
        <td>困难</td>
        <td>5</td>
        <td>3.25</td>
    </tr>
    <tr>
        <td>10</td>
        <td>125</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome/">验证回文串</a></td>
        <td>42.3%</td>
        <td>简单</td>
        <td>5</td>
        <td>2.035</td>
    </tr>
    <tr>
        <td>11</td>
        <td>253</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms-ii/">会议室 II</a></td>
        <td>40.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.954</td>
    </tr>
    <tr>
        <td>12</td>
        <td>17</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/">电话号码的字母组合</a></td>
        <td>52.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.735</td>
    </tr>
    <tr>
        <td>13</td>
        <td>23</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-k-sorted-lists/">合并K个排序链表</a></td>
        <td>48.7%</td>
        <td>困难</td>
        <td>5</td>
        <td>1.983</td>
    </tr>
    <tr>
        <td>14</td>
        <td>238</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/product-of-array-except-self/">除自身以外数组的乘积</a></td>
        <td>66.0%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.641</td>
    </tr>
    <tr>
        <td>15</td>
        <td>76</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-window-substring/">最小覆盖子串</a></td>
        <td>35.3%</td>
        <td>困难</td>
        <td>5</td>
        <td>2.643</td>
    </tr>
    <tr>
        <td>16</td>
        <td>56</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-intervals/">合并区间</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.007</td>
    </tr>
    <tr>
        <td>17</td>
        <td>278</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-bad-version/">第一个错误的版本</a></td>
        <td>36.4%</td>
        <td>简单</td>
        <td>5</td>
        <td>2.531</td>
    </tr>
    <tr>
        <td>18</td>
        <td>200</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands/">岛屿数量</a></td>
        <td>46.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.017</td>
    </tr>
    <tr>
        <td>19</td>
        <td>621</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/task-scheduler/">任务调度器</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.079</td>
    </tr>
    <tr>
        <td>20</td>
        <td>121</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/">买卖股票的最佳时机</a>
        </td>
        <td>52.3%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.417</td>
    </tr>
    <tr>
        <td>21</td>
        <td>98</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-binary-search-tree/">验证二叉搜索树</a></td>
        <td>28.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.762</td>
    </tr>
    <tr>
        <td>22</td>
        <td>29</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/divide-two-integers/">两数相除</a></td>
        <td>19.2%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.139</td>
    </tr>
    <tr>
        <td>23</td>
        <td>31</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-permutation/">下一个排列</a></td>
        <td>32.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.959</td>
    </tr>
    <tr>
        <td>24</td>
        <td>560</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarray-sum-equals-k/">和为K的子数组</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.908</td>
    </tr>
    <tr>
        <td>25</td>
        <td>124</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-maximum-path-sum/">二叉树中的最大路径和</a></td>
        <td>39.2%</td>
        <td>困难</td>
        <td>5</td>
        <td>2.486</td>
    </tr>
    <tr>
        <td>26</td>
        <td>173</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-search-tree-iterator/">二叉搜索树迭代器</a></td>
        <td>70.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.788</td>
    </tr>
    <tr>
        <td>27</td>
        <td>953</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/verifying-an-alien-dictionary/">验证外星语词典</a></td>
        <td>56.6%</td>
        <td>简单</td>
        <td>5</td>
        <td>4.029</td>
    </tr>
    <tr>
        <td>28</td>
        <td>973</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/k-closest-points-to-origin/">最接近原点的 K 个点</a></td>
        <td>57.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.17</td>
    </tr>
    <tr>
        <td>29</td>
        <td>215</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-an-array/">数组中的第K个最大元素</a>
        </td>
        <td>60.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.594</td>
    </tr>
    <tr>
        <td>30</td>
        <td>20</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parentheses/">有效的括号</a></td>
        <td>40.8%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.872</td>
    </tr>
    <tr>
        <td>31</td>
        <td>88</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-sorted-array/">合并两个有序数组</a></td>
        <td>46.5%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.248</td>
    </tr>
    <tr>
        <td>32</td>
        <td>680</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome-ii/">验证回文字符串 Ⅱ</a></td>
        <td>35.0%</td>
        <td>简单</td>
        <td>5</td>
        <td>2.582</td>
    </tr>
    <tr>
        <td>33</td>
        <td>158</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/read-n-characters-given-read4-ii-call-multiple-times/">用 Read4 读取
            N 个字符 II</a></td>
        <td>56.2%</td>
        <td>困难</td>
        <td>5</td>
        <td>5.013</td>
    </tr>
    <tr>
        <td>34</td>
        <td>146</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lru-cache/">LRU缓存机制</a></td>
        <td>45.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.997</td>
    </tr>
    <tr>
        <td>35</td>
        <td>543</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/diameter-of-binary-tree/">二叉树的直径</a></td>
        <td>47.0%</td>
        <td>简单</td>
        <td>5</td>
        <td>2.149</td>
    </tr>
    <tr>
        <td>36</td>
        <td>42</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water/">接雨水</a></td>
        <td>48.4%</td>
        <td>困难</td>
        <td>5</td>
        <td>1.624</td>
    </tr>
    <tr>
        <td>37</td>
        <td>133</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/clone-graph/">克隆图</a></td>
        <td>48.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.79</td>
    </tr>
    <tr>
        <td>38</td>
        <td>33</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array/">搜索旋转排序数组</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.408</td>
    </tr>
    <tr>
        <td>39</td>
        <td>139</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break/">单词拆分</a></td>
        <td>43.1%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.891</td>
    </tr>
    <tr>
        <td>40</td>
        <td>2</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers/">两数相加</a></td>
        <td>36.6%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.616</td>
    </tr>
    <tr>
        <td>41</td>
        <td>211</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-and-search-word-data-structure-design/">添加与搜索单词
            - 数据结构设计</a></td>
        <td>42.5%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.173</td>
    </tr>
    <tr>
        <td>42</td>
        <td>3</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/">无重复字符的最长子串</a>
        </td>
        <td>32.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.619</td>
    </tr>
    <tr>
        <td>43</td>
        <td>257</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-paths/">二叉树的所有路径</a></td>
        <td>61.9%</td>
        <td>简单</td>
        <td>5</td>
        <td>2.05</td>
    </tr>
    <tr>
        <td>44</td>
        <td>114</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list/">二叉树展开为链表</a>
        </td>
        <td>67.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.86</td>
    </tr>
    <tr>
        <td>45</td>
        <td>349</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays/">两个数组的交集</a></td>
        <td>68.0%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.705</td>
    </tr>
    <tr>
        <td>46</td>
        <td>138</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/copy-list-with-random-pointer/">复制带随机指针的链表</a>
        </td>
        <td>43.6%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.206</td>
    </tr>
    <tr>
        <td>47</td>
        <td>438</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-all-anagrams-in-a-string/">找到字符串中所有字母异位词</a>
        </td>
        <td>40.6%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.398</td>
    </tr>
    <tr>
        <td>48</td>
        <td>314</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/binary-tree-vertical-order-traversal/">二叉树的垂直遍历</a></td>
        <td>52.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>4.549</td>
    </tr>
    <tr>
        <td>49</td>
        <td>236</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree/">二叉树的最近公共祖先</a>
        </td>
        <td>59.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.618</td>
    </tr>
    <tr>
        <td>50</td>
        <td>43</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/multiply-strings/">字符串相乘</a></td>
        <td>41.5%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.668</td>
    </tr>
    <tr>
        <td>51</td>
        <td>53</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-subarray/">最大子序和</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.787</td>
    </tr>
    <tr>
        <td>52</td>
        <td>282</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/expression-add-operators/">给表达式添加运算符</a></td>
        <td>32.0%</td>
        <td>困难</td>
        <td>5</td>
        <td>3.992</td>
    </tr>
    <tr>
        <td>53</td>
        <td>34</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/">在排序数组中查找元素的第一个和最后一个位置</a>
        </td>
        <td>38.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.179</td>
    </tr>
    <tr>
        <td>54</td>
        <td>5</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-substring/">最长回文子串</a></td>
        <td>28.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.708</td>
    </tr>
    <tr>
        <td>55</td>
        <td>78</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subsets/">子集</a></td>
        <td>76.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.267</td>
    </tr>
    <tr>
        <td>56</td>
        <td>206</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list/">反转链表</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.799</td>
    </tr>
    <tr>
        <td>57</td>
        <td>269</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/alien-dictionary/">火星词典</a></td>
        <td>39.6%</td>
        <td>困难</td>
        <td>5</td>
        <td>4.127</td>
    </tr>
    <tr>
        <td>58</td>
        <td>65</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-number/">有效数字</a></td>
        <td>17.9%</td>
        <td>困难</td>
        <td>5</td>
        <td>2.755</td>
    </tr>
    <tr>
        <td>59</td>
        <td>350</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays-ii/">两个数组的交集 II</a>
        </td>
        <td>46.4%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.453</td>
    </tr>
    <tr>
        <td>60</td>
        <td>426</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list/">将二叉搜索树转化为排序的双向链表</a>
        </td>
        <td>60.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>4.195</td>
    </tr>
    <tr>
        <td>61</td>
        <td>523</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/continuous-subarray-sum/">连续的子数组和</a></td>
        <td>22.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.899</td>
    </tr>
    <tr>
        <td>62</td>
        <td>13</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/roman-to-integer/">罗马数字转整数</a></td>
        <td>60.6%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.774</td>
    </tr>
    <tr>
        <td>63</td>
        <td>157</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/read-n-characters-given-read4/">用 Read4 读取 N
            个字符</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>5</td>
        <td>3.901</td>
    </tr>
    <tr>
        <td>64</td>
        <td>199</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-right-side-view/">二叉树的右视图</a></td>
        <td>63.0%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.893</td>
    </tr>
    <tr>
        <td>65</td>
        <td>21</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-sorted-lists/">合并两个有序链表</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.606</td>
    </tr>
    <tr>
        <td>66</td>
        <td>415</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-strings/">字符串相加</a></td>
        <td>49.3%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.867</td>
    </tr>
    <tr>
        <td>67</td>
        <td>304</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-2d-immutable/">二维区域和检索 - 矩阵不可变</a>
        </td>
        <td>42.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.7</td>
    </tr>
    <tr>
        <td>68</td>
        <td>75</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-colors/">颜色分类</a></td>
        <td>54.5%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.165</td>
    </tr>
    <tr>
        <td>69</td>
        <td>300</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-increasing-subsequence/">最长上升子序列</a></td>
        <td>43.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.326</td>
    </tr>
    <tr>
        <td>70</td>
        <td>143</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reorder-list/">重排链表</a></td>
        <td>54.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.948</td>
    </tr>
    <tr>
        <td>71</td>
        <td>325</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k/">和等于 k
            的最长子数组长度</a></td>
        <td>45.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.798</td>
    </tr>
    <tr>
        <td>72</td>
        <td>785</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/is-graph-bipartite/">判断二分图</a></td>
        <td>42.5%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.088</td>
    </tr>
    <tr>
        <td>73</td>
        <td>79</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search/">单词搜索</a></td>
        <td>40.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.336</td>
    </tr>
    <tr>
        <td>74</td>
        <td>32</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-valid-parentheses/">最长有效括号</a></td>
        <td>29.5%</td>
        <td>困难</td>
        <td>5</td>
        <td>1.259</td>
    </tr>
    <tr>
        <td>75</td>
        <td>50</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/powx-n/">Pow(x, n)</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.127</td>
    </tr>
    <tr>
        <td>76</td>
        <td>277</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-celebrity/">搜寻名人</a></td>
        <td>57.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.616</td>
    </tr>
    <tr>
        <td>77</td>
        <td>340</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters/">至多包含 K
            个不同字符的最长子串</a></td>
        <td>46.1%</td>
        <td>困难</td>
        <td>5</td>
        <td>3.612</td>
    </tr>
    <tr>
        <td>78</td>
        <td>4</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/median-of-two-sorted-arrays/">寻找两个有序数组的中位数</a>
        </td>
        <td>36.7%</td>
        <td>困难</td>
        <td>5</td>
        <td>0.664</td>
    </tr>
    <tr>
        <td>79</td>
        <td>336</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-pairs/">回文对</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>5</td>
        <td>3.339</td>
    </tr>
    <tr>
        <td>80</td>
        <td>57</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-interval/">插入区间</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>5</td>
        <td>1.889</td>
    </tr>
    <tr>
        <td>81</td>
        <td>311</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sparse-matrix-multiplication/">稀疏矩阵的乘法</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>4.14</td>
    </tr>
    <tr>
        <td>82</td>
        <td>102</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal/">二叉树的层次遍历</a>
        </td>
        <td>60.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.783</td>
    </tr>
    <tr>
        <td>83</td>
        <td>71</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/simplify-path/">简化路径</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.341</td>
    </tr>
    <tr>
        <td>84</td>
        <td>721</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/accounts-merge/">账户合并</a></td>
        <td>31.5%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.302</td>
    </tr>
    <tr>
        <td>85</td>
        <td>162</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-peak-element/">寻找峰值</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.433</td>
    </tr>
    <tr>
        <td>86</td>
        <td>1249</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/minimum-remove-to-make-valid-parentheses/">移除无效的括号</a></td>
        <td>53.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.502</td>
    </tr>
    <tr>
        <td>87</td>
        <td>227</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator-ii/">基本计算器 II</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.093</td>
    </tr>
    <tr>
        <td>88</td>
        <td>239</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sliding-window-maximum/">滑动窗口最大值</a></td>
        <td>43.7%</td>
        <td>困难</td>
        <td>5</td>
        <td>1.403</td>
    </tr>
    <tr>
        <td>89</td>
        <td>347</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-elements/">前 K 个高频元素</a></td>
        <td>60.1%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.203</td>
    </tr>
    <tr>
        <td>90</td>
        <td>49</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/group-anagrams/">字母异位词分组</a></td>
        <td>60.6%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.002</td>
    </tr>
    <tr>
        <td>91</td>
        <td>127</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder/">单词接龙</a></td>
        <td>39.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.519</td>
    </tr>
    <tr>
        <td>92</td>
        <td>161</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/one-edit-distance/">相隔为 1 的编辑距离</a></td>
        <td>31.6%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.278</td>
    </tr>
    <tr>
        <td>93</td>
        <td>636</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/exclusive-time-of-functions/">函数的独占时间</a></td>
        <td>48.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.347</td>
    </tr>
    <tr>
        <td>94</td>
        <td>105</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/">从前序与中序遍历序列构造二叉树</a>
        </td>
        <td>63.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.031</td>
    </tr>
    <tr>
        <td>95</td>
        <td>341</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-nested-list-iterator/">扁平化嵌套列表迭代器</a></td>
        <td>62.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.349</td>
    </tr>
    <tr>
        <td>96</td>
        <td>46</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations/">全排列</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.769</td>
    </tr>
    <tr>
        <td>97</td>
        <td>140</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break-ii/">单词拆分 II</a></td>
        <td>37.7%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.994</td>
    </tr>
    <tr>
        <td>98</td>
        <td>8</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-to-integer-atoi/">字符串转换整数 (atoi)</a></td>
        <td>19.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.603</td>
    </tr>
    <tr>
        <td>99</td>
        <td>51</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/n-queens/">N皇后</a></td>
        <td>67.9%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.341</td>
    </tr>
    <tr>
        <td>100</td>
        <td>286</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/walls-and-gates/">墙与门</a></td>
        <td>44.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.076</td>
    </tr>
    <tr>
        <td>101</td>
        <td>122</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii/">买卖股票的最佳时机
            II</a></td>
        <td>57.3%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.58</td>
    </tr>
    <tr>
        <td>102</td>
        <td>986</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/interval-list-intersections/">区间列表的交集</a></td>
        <td>61.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.909</td>
    </tr>
    <tr>
        <td>103</td>
        <td>28</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-strstr/">实现 strStr()</a></td>
        <td>39.5%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.547</td>
    </tr>
    <tr>
        <td>104</td>
        <td>38</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-and-say/">外观数列</a></td>
        <td>54.4%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.777</td>
    </tr>
    <tr>
        <td>105</td>
        <td>394</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-string/">字符串解码</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.353</td>
    </tr>
    <tr>
        <td>106</td>
        <td>230</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst/">二叉搜索树中第K小的元素</a>
        </td>
        <td>68.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.188</td>
    </tr>
    <tr>
        <td>107</td>
        <td>689</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-sum-of-3-non-overlapping-subarrays/">三个无重叠子数组的最大和</a>
        </td>
        <td>43.7%</td>
        <td>困难</td>
        <td>4</td>
        <td>3.92</td>
    </tr>
    <tr>
        <td>108</td>
        <td>896</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/monotonic-array/">单调数列</a></td>
        <td>50.8%</td>
        <td>简单</td>
        <td>4</td>
        <td>2.113</td>
    </tr>
    <tr>
        <td>109</td>
        <td>11</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/container-with-most-water/">盛最多水的容器</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.423</td>
    </tr>
    <tr>
        <td>110</td>
        <td>26</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/">删除排序数组中的重复项</a></td>
        <td>48.4%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.328</td>
    </tr>
    <tr>
        <td>111</td>
        <td>39</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum/">组合总和</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.737</td>
    </tr>
    <tr>
        <td>112</td>
        <td>94</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-inorder-traversal/">二叉树的中序遍历</a></td>
        <td>70.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.538</td>
    </tr>
    <tr>
        <td>113</td>
        <td>111</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-depth-of-binary-tree/">二叉树的最小深度</a></td>
        <td>41.4%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.779</td>
    </tr>
    <tr>
        <td>114</td>
        <td>22</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/generate-parentheses/">括号生成</a></td>
        <td>73.2%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.589</td>
    </tr>
    <tr>
        <td>115</td>
        <td>317</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/shortest-distance-from-all-buildings/">离建筑物最近的距离</a></td>
        <td>43.5%</td>
        <td>困难</td>
        <td>4</td>
        <td>3.932</td>
    </tr>
    <tr>
        <td>116</td>
        <td>18</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/4sum/">四数之和</a></td>
        <td>37.1%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.761</td>
    </tr>
    <tr>
        <td>117</td>
        <td>208</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-trie-prefix-tree/">实现 Trie (前缀树)</a>
        </td>
        <td>64.3%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.128</td>
    </tr>
    <tr>
        <td>118</td>
        <td>126</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder-ii/">单词接龙 II</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>4</td>
        <td>2.195</td>
    </tr>
    <tr>
        <td>119</td>
        <td>44</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wildcard-matching/">通配符匹配</a></td>
        <td>26.4%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.253</td>
    </tr>
    <tr>
        <td>120</td>
        <td>128</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-consecutive-sequence/">最长连续序列</a></td>
        <td>47.6%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.229</td>
    </tr>
    <tr>
        <td>121</td>
        <td>252</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms/">会议室</a></td>
        <td>51.7%</td>
        <td>简单</td>
        <td>4</td>
        <td>2.603</td>
    </tr>
    <tr>
        <td>122</td>
        <td>380</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-delete-getrandom-o1/">常数时间插入、删除和获取随机元素</a>
        </td>
        <td>47.7%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.859</td>
    </tr>
    <tr>
        <td>123</td>
        <td>224</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator/">基本计算器</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.888</td>
    </tr>
    <tr>
        <td>124</td>
        <td>348</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-tic-tac-toe/">判定井字棋胜负</a></td>
        <td>56.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.075</td>
    </tr>
    <tr>
        <td>125</td>
        <td>463</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/island-perimeter/">岛屿的周长</a></td>
        <td>65.0%</td>
        <td>简单</td>
        <td>4</td>
        <td>1.692</td>
    </tr>
    <tr>
        <td>126</td>
        <td>209</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-size-subarray-sum/">长度最小的子数组</a></td>
        <td>41.1%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.081</td>
    </tr>
    <tr>
        <td>127</td>
        <td>285</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/inorder-successor-in-bst/">二叉搜索树中的顺序后继</a></td>
        <td>59.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.862</td>
    </tr>
    <tr>
        <td>128</td>
        <td>494</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/target-sum/">目标和</a></td>
        <td>43.2%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.349</td>
    </tr>
    <tr>
        <td>129</td>
        <td>7</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-integer/">整数反转</a></td>
        <td>33.6%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.23</td>
    </tr>
    <tr>
        <td>130</td>
        <td>647</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindromic-substrings/">回文子串</a></td>
        <td>60.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.287</td>
    </tr>
    <tr>
        <td>131</td>
        <td>62</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths/">不同路径</a></td>
        <td>58.7%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.531</td>
    </tr>
    <tr>
        <td>132</td>
        <td>449</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/serialize-and-deserialize-bst/">序列化和反序列化二叉搜索树</a>
        </td>
        <td>50.6%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.404</td>
    </tr>
    <tr>
        <td>133</td>
        <td>109</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree/">有序链表转换二叉搜索树</a>
        </td>
        <td>70.1%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.21</td>
    </tr>
    <tr>
        <td>134</td>
        <td>151</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string/">翻转字符串里的单词</a></td>
        <td>35.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.982</td>
    </tr>
    <tr>
        <td>135</td>
        <td>295</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-median-from-data-stream/">数据流的中位数</a></td>
        <td>42.0%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.663</td>
    </tr>
    <tr>
        <td>136</td>
        <td>69</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sqrtx/">x 的平方根</a></td>
        <td>37.5%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.498</td>
    </tr>
    <tr>
        <td>137</td>
        <td>824</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/goat-latin/">山羊拉丁文</a></td>
        <td>58.7%</td>
        <td>简单</td>
        <td>4</td>
        <td>2.162</td>
    </tr>
    <tr>
        <td>138</td>
        <td>212</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search-ii/">单词搜索 II</a></td>
        <td>39.1%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.726</td>
    </tr>
    <tr>
        <td>139</td>
        <td>247</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/strobogrammatic-number-ii/">中心对称数 II</a></td>
        <td>48.3%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.96</td>
    </tr>
    <tr>
        <td>140</td>
        <td>387</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/first-unique-character-in-a-string/">字符串中的第一个唯一字符</a></td>
        <td>43.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.781</td>
    </tr>
    <tr>
        <td>141</td>
        <td>322</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change/">零钱兑换</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.781</td>
    </tr>
    <tr>
        <td>142</td>
        <td>398</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/random-pick-index/">随机数索引</a></td>
        <td>58.1%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.432</td>
    </tr>
    <tr>
        <td>143</td>
        <td>123</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii/">买卖股票的最佳时机
            III</a></td>
        <td>40.9%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.033</td>
    </tr>
    <tr>
        <td>144</td>
        <td>246</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/strobogrammatic-number/">中心对称数</a></td>
        <td>45.4%</td>
        <td>简单</td>
        <td>4</td>
        <td>2.727</td>
    </tr>
    <tr>
        <td>145</td>
        <td>416</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-equal-subset-sum/">分割等和子集</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.277</td>
    </tr>
    <tr>
        <td>146</td>
        <td>73</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/set-matrix-zeroes/">矩阵置零</a></td>
        <td>55.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.947</td>
    </tr>
    <tr>
        <td>147</td>
        <td>270</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/closest-binary-search-tree-value/">最接近的二叉搜索树值</a>
        </td>
        <td>50.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>2.43</td>
    </tr>
    <tr>
        <td>148</td>
        <td>567</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutation-in-string/">字符串的排列</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.373</td>
    </tr>
    <tr>
        <td>149</td>
        <td>207</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule/">课程表</a></td>
        <td>49.1%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.002</td>
    </tr>
    <tr>
        <td>150</td>
        <td>66</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/plus-one/">加一</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.351</td>
    </tr>
    <tr>
        <td>151</td>
        <td>198</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber/">打家劫舍</a></td>
        <td>42.8%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.428</td>
    </tr>
    <tr>
        <td>152</td>
        <td>25</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-nodes-in-k-group/">K 个一组翻转链表</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>4</td>
        <td>0.749</td>
    </tr>
    <tr>
        <td>153</td>
        <td>235</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree/">二叉搜索树的最近公共祖先</a>
        </td>
        <td>62.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.784</td>
    </tr>
    <tr>
        <td>154</td>
        <td>116</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node/">填充每个节点的下一个右侧节点指针</a>
        </td>
        <td>53.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.069</td>
    </tr>
    <tr>
        <td>155</td>
        <td>240</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix-ii/">搜索二维矩阵 II</a></td>
        <td>38.7%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.77</td>
    </tr>
    <tr>
        <td>156</td>
        <td>101</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/symmetric-tree/">对称二叉树</a></td>
        <td>49.9%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.354</td>
    </tr>
    <tr>
        <td>157</td>
        <td>24</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/swap-nodes-in-pairs/">两两交换链表中的节点</a></td>
        <td>64.2%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.417</td>
    </tr>
    <tr>
        <td>158</td>
        <td>153</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array/">寻找旋转排序数组中的最小值</a>
        </td>
        <td>50.2%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.809</td>
    </tr>
    <tr>
        <td>159</td>
        <td>242</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-anagram/">有效的字母异位词</a></td>
        <td>58.3%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.546</td>
    </tr>
    <tr>
        <td>160</td>
        <td>346</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/moving-average-from-data-stream/">数据流中的移动平均值</a>
        </td>
        <td>69.6%</td>
        <td>简单</td>
        <td>4</td>
        <td>2.263</td>
    </tr>
    <tr>
        <td>161</td>
        <td>674</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-continuous-increasing-subsequence/">最长连续递增序列</a>
        </td>
        <td>43.8%</td>
        <td>简单</td>
        <td>4</td>
        <td>1.263</td>
    </tr>
    <tr>
        <td>162</td>
        <td>825</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friends-of-appropriate-ages/">适龄的朋友</a></td>
        <td>33.6%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.872</td>
    </tr>
    <tr>
        <td>163</td>
        <td>958</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree/">二叉树的完全性检验</a></td>
        <td>46.3%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.29</td>
    </tr>
    <tr>
        <td>164</td>
        <td>692</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-words/">前K个高频单词</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.749</td>
    </tr>
    <tr>
        <td>165</td>
        <td>938</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-of-bst/">二叉搜索树的范围和</a></td>
        <td>75.9%</td>
        <td>简单</td>
        <td>4</td>
        <td>1.167</td>
    </tr>
    <tr>
        <td>166</td>
        <td>54</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix/">螺旋矩阵</a></td>
        <td>38.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.606</td>
    </tr>
    <tr>
        <td>167</td>
        <td>145</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-postorder-traversal/">二叉树的后序遍历</a>
        </td>
        <td>70.0%</td>
        <td>困难</td>
        <td>4</td>
        <td>0.593</td>
    </tr>
    <tr>
        <td>168</td>
        <td>528</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/random-pick-with-weight/">按权重随机选择</a></td>
        <td>40.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.759</td>
    </tr>
    <tr>
        <td>169</td>
        <td>987</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree/">二叉树的垂序遍历</a>
        </td>
        <td>36.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.56</td>
    </tr>
    <tr>
        <td>170</td>
        <td>218</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-skyline-problem/">天际线问题</a></td>
        <td>40.3%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.952</td>
    </tr>
    <tr>
        <td>171</td>
        <td>14</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-common-prefix/">最长公共前缀</a></td>
        <td>36.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.223</td>
    </tr>
    <tr>
        <td>172</td>
        <td>104</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/">二叉树的最大深度</a></td>
        <td>72.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.273</td>
    </tr>
    <tr>
        <td>173</td>
        <td>152</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-subarray/">乘积最大子序列</a></td>
        <td>37.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.618</td>
    </tr>
    <tr>
        <td>174</td>
        <td>378</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix/">有序矩阵中第K小的元素</a>
        </td>
        <td>57.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.216</td>
    </tr>
    <tr>
        <td>175</td>
        <td>791</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/custom-sort-string/">自定义字符串排序</a></td>
        <td>65.2%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.169</td>
    </tr>
    <tr>
        <td>176</td>
        <td>344</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string/">反转字符串</a></td>
        <td>68.9%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.367</td>
    </tr>
    <tr>
        <td>177</td>
        <td>117</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii/">填充每个节点的下一个右侧节点指针
            II</a></td>
        <td>44.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.106</td>
    </tr>
    <tr>
        <td>178</td>
        <td>210</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule-ii/">课程表 II</a></td>
        <td>46.1%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.118</td>
    </tr>
    <tr>
        <td>179</td>
        <td>977</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/squares-of-a-sorted-array/">有序数组的平方</a></td>
        <td>70.9%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.932</td>
    </tr>
    <tr>
        <td>180</td>
        <td>1004</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-consecutive-ones-iii/">最大连续1的个数 III</a></td>
        <td>47.0%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.995</td>
    </tr>
    <tr>
        <td>181</td>
        <td>36</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-sudoku/">有效的数独</a></td>
        <td>58.2%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.549</td>
    </tr>
    <tr>
        <td>182</td>
        <td>329</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix/">矩阵中的最长递增路径</a></td>
        <td>39.6%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.422</td>
    </tr>
    <tr>
        <td>183</td>
        <td>358</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rearrange-string-k-distance-apart/">K
            距离间隔重排字符串</a></td>
        <td>34.9%</td>
        <td>困难</td>
        <td>3</td>
        <td>3.724</td>
    </tr>
    <tr>
        <td>184</td>
        <td>767</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reorganize-string/">重构字符串</a></td>
        <td>38.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.893</td>
    </tr>
    <tr>
        <td>185</td>
        <td>708</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-into-a-sorted-circular-linked-list/">循环有序列表的插入</a>
        </td>
        <td>28.3%</td>
        <td>中等</td>
        <td>3</td>
        <td>3.683</td>
    </tr>
    <tr>
        <td>186</td>
        <td>12</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-roman/">整数转罗马数字</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.413</td>
    </tr>
    <tr>
        <td>187</td>
        <td>90</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subsets-ii/">子集 II</a></td>
        <td>58.8%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.783</td>
    </tr>
    <tr>
        <td>188</td>
        <td>334</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/increasing-triplet-subsequence/">递增的三元子序列</a></td>
        <td>36.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.261</td>
    </tr>
    <tr>
        <td>189</td>
        <td>670</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-swap/">最大交换</a></td>
        <td>38.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.005</td>
    </tr>
    <tr>
        <td>190</td>
        <td>41</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-missing-positive/">缺失的第一个正数</a></td>
        <td>37.5%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.64</td>
    </tr>
    <tr>
        <td>191</td>
        <td>81</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array-ii/">搜索旋转排序数组
            II</a></td>
        <td>34.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.88</td>
    </tr>
    <tr>
        <td>192</td>
        <td>84</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-rectangle-in-histogram/">柱状图中最大的矩形</a>
        </td>
        <td>38.7%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.668</td>
    </tr>
    <tr>
        <td>193</td>
        <td>92</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list-ii/">反转链表 II</a></td>
        <td>48.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.62</td>
    </tr>
    <tr>
        <td>194</td>
        <td>103</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal/">二叉树的锯齿形层次遍历</a>
        </td>
        <td>53.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.61</td>
    </tr>
    <tr>
        <td>195</td>
        <td>468</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-ip-address/">验证IP地址</a></td>
        <td>21.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.771</td>
    </tr>
    <tr>
        <td>196</td>
        <td>332</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reconstruct-itinerary/">重新安排行程</a></td>
        <td>35.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.609</td>
    </tr>
    <tr>
        <td>197</td>
        <td>37</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sudoku-solver/">解数独</a></td>
        <td>59.3%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.956</td>
    </tr>
    <tr>
        <td>198</td>
        <td>597</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-requests-i-overall-acceptance-rate/">好友申请 I
            ：总体通过率</a></td>
        <td>40.9%</td>
        <td>简单</td>
        <td>3</td>
        <td>2.512</td>
    </tr>
    <tr>
        <td>199</td>
        <td>19</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/">删除链表的倒数第N个节点</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.236</td>
    </tr>
    <tr>
        <td>200</td>
        <td>55</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game/">跳跃游戏</a></td>
        <td>38.0%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.396</td>
    </tr>
    <tr>
        <td>201</td>
        <td>72</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/edit-distance/">编辑距离</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.621</td>
    </tr>
    <tr>
        <td>202</td>
        <td>74</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix/">搜索二维矩阵</a></td>
        <td>37.2%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.596</td>
    </tr>
    <tr>
        <td>203</td>
        <td>108</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree/">将有序数组转换为二叉搜索树</a>
        </td>
        <td>69.0%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.459</td>
    </tr>
    <tr>
        <td>204</td>
        <td>189</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-array/">旋转数组</a></td>
        <td>40.3%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.357</td>
    </tr>
    <tr>
        <td>205</td>
        <td>399</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/evaluate-division/">除法求值</a></td>
        <td>53.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.589</td>
    </tr>
    <tr>
        <td>206</td>
        <td>498</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/diagonal-traverse/">对角线遍历</a></td>
        <td>39.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.31</td>
    </tr>
    <tr>
        <td>207</td>
        <td>99</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/recover-binary-search-tree/">恢复二叉搜索树</a></td>
        <td>54.7%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.257</td>
    </tr>
    <tr>
        <td>208</td>
        <td>658</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-k-closest-elements/">找到 K 个最接近的元素</a></td>
        <td>42.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.835</td>
    </tr>
    <tr>
        <td>209</td>
        <td>45</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game-ii/">跳跃游戏 II</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.625</td>
    </tr>
    <tr>
        <td>210</td>
        <td>100</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/same-tree/">相同的树</a></td>
        <td>56.4%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.351</td>
    </tr>
    <tr>
        <td>211</td>
        <td>339</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nested-list-weight-sum/">嵌套列表权重和</a></td>
        <td>79.8%</td>
        <td>简单</td>
        <td>3</td>
        <td>2.56</td>
    </tr>
    <tr>
        <td>212</td>
        <td>445</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers-ii/">两数相加 II</a></td>
        <td>53.8%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.917</td>
    </tr>
    <tr>
        <td>213</td>
        <td>622</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-circular-queue/">设计循环队列</a></td>
        <td>39.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.827</td>
    </tr>
    <tr>
        <td>214</td>
        <td>167</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted/">两数之和 II -
            输入有序数组</a></td>
        <td>52.3%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.338</td>
    </tr>
    <tr>
        <td>215</td>
        <td>251</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-2d-vector/">展开二维向量</a></td>
        <td>51.2%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.892</td>
    </tr>
    <tr>
        <td>216</td>
        <td>148</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-list/">排序链表</a></td>
        <td>63.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.51</td>
    </tr>
    <tr>
        <td>217</td>
        <td>85</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-rectangle/">最大矩形</a></td>
        <td>44.3%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.816</td>
    </tr>
    <tr>
        <td>218</td>
        <td>477</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/total-hamming-distance/">汉明距离总和</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.853</td>
    </tr>
    <tr>
        <td>219</td>
        <td>47</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations-ii/">全排列 II</a></td>
        <td>56.8%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.516</td>
    </tr>
    <tr>
        <td>220</td>
        <td>48</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-image/">旋转图像</a></td>
        <td>66.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.402</td>
    </tr>
    <tr>
        <td>221</td>
        <td>106</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal/">从中序与后序遍历序列构造二叉树</a>
        </td>
        <td>66.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.689</td>
    </tr>
    <tr>
        <td>222</td>
        <td>419</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/battleships-in-a-board/">甲板上的战舰</a></td>
        <td>70.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.85</td>
    </tr>
    <tr>
        <td>223</td>
        <td>921</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/minimum-add-to-make-parentheses-valid/">使括号有效的最少添加</a></td>
        <td>70.1%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.52</td>
    </tr>
    <tr>
        <td>224</td>
        <td>518</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change-2/">零钱兑换 II</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.436</td>
    </tr>
    <tr>
        <td>225</td>
        <td>191</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-1-bits/">位1的个数</a></td>
        <td>64.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.465</td>
    </tr>
    <tr>
        <td>226</td>
        <td>30</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/substring-with-concatenation-of-all-words/">串联所有单词的子串</a>
        </td>
        <td>29.1%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.769</td>
    </tr>
    <tr>
        <td>227</td>
        <td>695</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-area-of-island/">岛屿的最大面积</a></td>
        <td>59.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.851</td>
    </tr>
    <tr>
        <td>228</td>
        <td>9</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-number/">回文数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.138</td>
    </tr>
    <tr>
        <td>229</td>
        <td>63</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths-ii/">不同路径 II</a></td>
        <td>32.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.414</td>
    </tr>
    <tr>
        <td>230</td>
        <td>110</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/balanced-binary-tree/">平衡二叉树</a></td>
        <td>50.0%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.387</td>
    </tr>
    <tr>
        <td>231</td>
        <td>160</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-linked-lists/">相交链表</a></td>
        <td>52.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.294</td>
    </tr>
    <tr>
        <td>232</td>
        <td>319</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bulb-switcher/">灯泡开关</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.344</td>
    </tr>
    <tr>
        <td>233</td>
        <td>632</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/smallest-range-covering-elements-from-k-lists/">最小区间</a>
        </td>
        <td>33.9%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.431</td>
    </tr>
    <tr>
        <td>234</td>
        <td>863</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree/">二叉树中所有距离为 K
            的结点</a></td>
        <td>46.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.033</td>
    </tr>
    <tr>
        <td>235</td>
        <td>1027</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-arithmetic-sequence/">最长等差数列</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.037</td>
    </tr>
    <tr>
        <td>236</td>
        <td>602</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-requests-ii-who-has-the-most-friends/">好友申请
            II ：谁有最多的好友</a></td>
        <td>56.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.648</td>
    </tr>
    <tr>
        <td>237</td>
        <td>642</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-search-autocomplete-system/">设计搜索自动补全系统</a>
        </td>
        <td>40.4%</td>
        <td>困难</td>
        <td>3</td>
        <td>3.059</td>
    </tr>
    <tr>
        <td>238</td>
        <td>381</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-delete-getrandom-o1-duplicates-allowed/">O(1)
            时间插入、删除和获取随机元素 - 允许重复</a></td>
        <td>36.6%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.234</td>
    </tr>
    <tr>
        <td>239</td>
        <td>678</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parenthesis-string/">有效的括号字符串</a></td>
        <td>29.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.647</td>
    </tr>
    <tr>
        <td>240</td>
        <td>93</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/restore-ip-addresses/">复原IP地址</a></td>
        <td>45.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.667</td>
    </tr>
    <tr>
        <td>241</td>
        <td>360</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-transformed-array/">有序转化数组</a></td>
        <td>62.8%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.848</td>
    </tr>
    <tr>
        <td>242</td>
        <td>392</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/is-subsequence/">判断子序列</a></td>
        <td>47.8%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.529</td>
    </tr>
    <tr>
        <td>243</td>
        <td>155</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/min-stack/">最小栈</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.273</td>
    </tr>
    <tr>
        <td>244</td>
        <td>68</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/text-justification/">文本左右对齐</a></td>
        <td>42.1%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.324</td>
    </tr>
    <tr>
        <td>245</td>
        <td>489</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/robot-room-cleaner/">扫地机器人</a></td>
        <td>72.2%</td>
        <td>困难</td>
        <td>3</td>
        <td>3.077</td>
    </tr>
    <tr>
        <td>246</td>
        <td>865</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/smallest-subtree-with-all-the-deepest-nodes/">具有所有最深结点的最小子树</a>
        </td>
        <td>51.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.234</td>
    </tr>
    <tr>
        <td>247</td>
        <td>77</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combinations/">组合</a></td>
        <td>72.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.523</td>
    </tr>
    <tr>
        <td>248</td>
        <td>112</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/path-sum/">路径总和</a></td>
        <td>48.9%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.321</td>
    </tr>
    <tr>
        <td>249</td>
        <td>166</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fraction-to-recurring-decimal/">分数到小数</a></td>
        <td>25.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.104</td>
    </tr>
    <tr>
        <td>250</td>
        <td>403</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/frog-jump/">青蛙过河</a></td>
        <td>32.3%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.591</td>
    </tr>
    <tr>
        <td>251</td>
        <td>694</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-distinct-islands/">不同岛屿的数量</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.796</td>
    </tr>
    <tr>
        <td>252</td>
        <td>772</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator-iii/">基本计算器 III</a></td>
        <td>31.6%</td>
        <td>困难</td>
        <td>3</td>
        <td>3.061</td>
    </tr>
    <tr>
        <td>253</td>
        <td>305</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands-ii/">岛屿数量 II</a></td>
        <td>31.9%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.705</td>
    </tr>
    <tr>
        <td>254</td>
        <td>393</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/utf-8-validation/">UTF-8 编码验证</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.788</td>
    </tr>
    <tr>
        <td>255</td>
        <td>149</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-points-on-a-line/">直线上最多的点数</a></td>
        <td>20.4%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.166</td>
    </tr>
    <tr>
        <td>256</td>
        <td>27</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-element/">移除元素</a></td>
        <td>57.4%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.143</td>
    </tr>
    <tr>
        <td>257</td>
        <td>141</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle/">环形链表</a></td>
        <td>46.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.178</td>
    </tr>
    <tr>
        <td>258</td>
        <td>175</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combine-two-tables/">组合两个表</a></td>
        <td>71.5%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.27</td>
    </tr>
    <tr>
        <td>259</td>
        <td>129</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sum-root-to-leaf-numbers/">求根到叶子节点数字之和</a></td>
        <td>61.3%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.638</td>
    </tr>
    <tr>
        <td>260</td>
        <td>303</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-immutable/">区域和检索 - 数组不可变</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.551</td>
    </tr>
    <tr>
        <td>261</td>
        <td>460</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lfu-cache/">LFU缓存</a></td>
        <td>33.7%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.996</td>
    </tr>
    <tr>
        <td>262</td>
        <td>480</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sliding-window-median/">滑动窗口中位数</a></td>
        <td>32.5%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.934</td>
    </tr>
    <tr>
        <td>263</td>
        <td>703</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-a-stream/">数据流中的第K大元素</a>
        </td>
        <td>42.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.826</td>
    </tr>
    <tr>
        <td>264</td>
        <td>844</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/backspace-string-compare/">比较含退格的字符串</a></td>
        <td>50.0%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.834</td>
    </tr>
    <tr>
        <td>265</td>
        <td>186</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string-ii/">翻转字符串里的单词 II</a>
        </td>
        <td>71.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.807</td>
    </tr>
    <tr>
        <td>266</td>
        <td>6</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/zigzag-conversion/">Z 字形变换</a></td>
        <td>46.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.195</td>
    </tr>
    <tr>
        <td>267</td>
        <td>144</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-preorder-traversal/">二叉树的前序遍历</a></td>
        <td>64.0%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.26</td>
    </tr>
    <tr>
        <td>268</td>
        <td>169</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element/">多数元素</a></td>
        <td>61.5%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.2</td>
    </tr>
    <tr>
        <td>269</td>
        <td>226</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/invert-binary-tree/">翻转二叉树</a></td>
        <td>73.7%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.253</td>
    </tr>
    <tr>
        <td>270</td>
        <td>234</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-linked-list/">回文链表</a></td>
        <td>40.2%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.26</td>
    </tr>
    <tr>
        <td>271</td>
        <td>16</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum-closest/">最接近的三数之和</a></td>
        <td>42.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.225</td>
    </tr>
    <tr>
        <td>272</td>
        <td>137</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number-ii/">只出现一次的数字 II</a></td>
        <td>65.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.62</td>
    </tr>
    <tr>
        <td>273</td>
        <td>452</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-number-of-arrows-to-burst-balloons/">用最少数量的箭引爆气球</a>
        </td>
        <td>48.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.967</td>
    </tr>
    <tr>
        <td>274</td>
        <td>490</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-maze/">迷宫</a></td>
        <td>44.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.234</td>
    </tr>
    <tr>
        <td>275</td>
        <td>529</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minesweeper/">扫雷游戏</a></td>
        <td>58.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.591</td>
    </tr>
    <tr>
        <td>276</td>
        <td>1060</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/missing-element-in-sorted-array/">有序数组中的缺失元素</a>
        </td>
        <td>46.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>3.064</td>
    </tr>
    <tr>
        <td>277</td>
        <td>308</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-2d-mutable/">二维区域和检索 - 可变</a></td>
        <td>55.4%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.856</td>
    </tr>
    <tr>
        <td>278</td>
        <td>176</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/second-highest-salary/">第二高的薪水</a></td>
        <td>33.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.278</td>
    </tr>
    <tr>
        <td>279</td>
        <td>554</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/brick-wall/">砖墙</a></td>
        <td>35.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.066</td>
    </tr>
    <tr>
        <td>280</td>
        <td>637</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/average-of-levels-in-binary-tree/">二叉树的层平均值</a>
        </td>
        <td>62.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.702</td>
    </tr>
    <tr>
        <td>281</td>
        <td>639</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways-ii/">解码方法 2</a></td>
        <td>26.2%</td>
        <td>困难</td>
        <td>2</td>
        <td>2.294</td>
    </tr>
    <tr>
        <td>282</td>
        <td>70</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/climbing-stairs/">爬楼梯</a></td>
        <td>47.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.116</td>
    </tr>
    <tr>
        <td>283</td>
        <td>136</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number/">只出现一次的数字</a></td>
        <td>65.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.142</td>
    </tr>
    <tr>
        <td>284</td>
        <td>249</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/group-shifted-strings/">移位字符串分组</a></td>
        <td>58.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.201</td>
    </tr>
    <tr>
        <td>285</td>
        <td>316</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-duplicate-letters/">去除重复字母</a></td>
        <td>37.0%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.044</td>
    </tr>
    <tr>
        <td>286</td>
        <td>437</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/path-sum-iii/">路径总和 III</a></td>
        <td>53.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.457</td>
    </tr>
    <tr>
        <td>287</td>
        <td>430</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-a-multilevel-doubly-linked-list/">扁平化多级双向链表</a>
        </td>
        <td>45.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.126</td>
    </tr>
    <tr>
        <td>288</td>
        <td>298</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-longest-consecutive-sequence/">二叉树最长连续序列</a>
        </td>
        <td>54.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.14</td>
    </tr>
    <tr>
        <td>289</td>
        <td>395</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-substring-with-at-least-k-repeating-characters/">至少有K个重复字符的最长子串</a>
        </td>
        <td>41.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.09</td>
    </tr>
    <tr>
        <td>290</td>
        <td>545</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/boundary-of-binary-tree/">二叉树的边界</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.439</td>
    </tr>
    <tr>
        <td>291</td>
        <td>178</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rank-scores/">分数排名</a></td>
        <td>60.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.498</td>
    </tr>
    <tr>
        <td>292</td>
        <td>221</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-square/">最大正方形</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.426</td>
    </tr>
    <tr>
        <td>293</td>
        <td>377</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum-iv/">组合总和 Ⅳ</a></td>
        <td>41.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.881</td>
    </tr>
    <tr>
        <td>294</td>
        <td>461</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/hamming-distance/">汉明距离</a></td>
        <td>74.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.328</td>
    </tr>
    <tr>
        <td>295</td>
        <td>40</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum-ii/">组合总和 II</a></td>
        <td>59.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.292</td>
    </tr>
    <tr>
        <td>296</td>
        <td>113</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/path-sum-ii/">路径总和 II</a></td>
        <td>58.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.363</td>
    </tr>
    <tr>
        <td>297</td>
        <td>266</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-permutation/">回文排列</a></td>
        <td>62.0%</td>
        <td>简单</td>
        <td>2</td>
        <td>1.695</td>
    </tr>
    <tr>
        <td>298</td>
        <td>280</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wiggle-sort/">摆动排序</a></td>
        <td>68.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.824</td>
    </tr>
    <tr>
        <td>299</td>
        <td>405</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal/">数字转换为十六进制数</a>
        </td>
        <td>49.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.912</td>
    </tr>
    <tr>
        <td>300</td>
        <td>432</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/all-oone-data-structure/">全 O(1) 的数据结构</a></td>
        <td>34.3%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.942</td>
    </tr>
    <tr>
        <td>301</td>
        <td>852</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/peak-index-in-a-mountain-array/">山脉数组的峰顶索引</a>
        </td>
        <td>69.2%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.775</td>
    </tr>
    <tr>
        <td>302</td>
        <td>885</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix-iii/">螺旋矩阵 III</a></td>
        <td>64.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.162</td>
    </tr>
    <tr>
        <td>303</td>
        <td>935</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/knight-dialer/">骑士拨号器</a></td>
        <td>40.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.146</td>
    </tr>
    <tr>
        <td>304</td>
        <td>1197</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-knight-moves/">进击的骑士</a></td>
        <td>28.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.71</td>
    </tr>
    <tr>
        <td>305</td>
        <td>219</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate-ii/">存在重复元素 II</a></td>
        <td>37.4%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.333</td>
    </tr>
    <tr>
        <td>306</td>
        <td>443</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-compression/">压缩字符串</a></td>
        <td>39.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.644</td>
    </tr>
    <tr>
        <td>307</td>
        <td>724</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-pivot-index/">寻找数组的中心索引</a></td>
        <td>36.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.429</td>
    </tr>
    <tr>
        <td>308</td>
        <td>384</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shuffle-an-array/">打乱数组</a></td>
        <td>49.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.748</td>
    </tr>
    <tr>
        <td>309</td>
        <td>204</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-primes/">计数质数</a></td>
        <td>32.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.326</td>
    </tr>
    <tr>
        <td>310</td>
        <td>185</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-top-three-salaries/">部门工资前三高的所有员工</a>
        </td>
        <td>41.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.755</td>
    </tr>
    <tr>
        <td>311</td>
        <td>188</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iv/">买卖股票的最佳时机
            IV</a></td>
        <td>28.8%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.564</td>
    </tr>
    <tr>
        <td>312</td>
        <td>192</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-frequency/">统计词频</a></td>
        <td>33.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.078</td>
    </tr>
    <tr>
        <td>313</td>
        <td>214</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-palindrome/">最短回文串</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.962</td>
    </tr>
    <tr>
        <td>314</td>
        <td>217</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate/">存在重复元素</a></td>
        <td>51.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.154</td>
    </tr>
    <tr>
        <td>315</td>
        <td>312</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/burst-balloons/">戳气球</a></td>
        <td>57.5%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.821</td>
    </tr>
    <tr>
        <td>316</td>
        <td>414</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/third-maximum-number/">第三大的数</a></td>
        <td>34.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.395</td>
    </tr>
    <tr>
        <td>317</td>
        <td>516</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-subsequence/">最长回文子序列</a></td>
        <td>49.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.666</td>
    </tr>
    <tr>
        <td>318</td>
        <td>614</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/second-degree-follower/">二级关注者</a></td>
        <td>29.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.153</td>
    </tr>
    <tr>
        <td>319</td>
        <td>428</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/serialize-and-deserialize-n-ary-tree/">序列化和反序列化 N
            叉树</a></td>
        <td>62.3%</td>
        <td>困难</td>
        <td>2</td>
        <td>2.524</td>
    </tr>
    <tr>
        <td>320</td>
        <td>766</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/toeplitz-matrix/">托普利茨矩阵</a></td>
        <td>63.4%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.809</td>
    </tr>
    <tr>
        <td>321</td>
        <td>862</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k/">和至少为 K
            的最短子数组</a></td>
        <td>13.1%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.991</td>
    </tr>
    <tr>
        <td>322</td>
        <td>1008</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-search-tree-from-preorder-traversal/">先序遍历构造二叉树</a>
        </td>
        <td>71.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.298</td>
    </tr>
    <tr>
        <td>323</td>
        <td>118</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pascals-triangle/">杨辉三角</a></td>
        <td>65.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.192</td>
    </tr>
    <tr>
        <td>324</td>
        <td>296</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-meeting-point/">最佳的碰头地点</a></td>
        <td>62.0%</td>
        <td>困难</td>
        <td>2</td>
        <td>2.524</td>
    </tr>
    <tr>
        <td>325</td>
        <td>556</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-greater-element-iii/">下一个更大元素 III</a></td>
        <td>29.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.32</td>
    </tr>
    <tr>
        <td>326</td>
        <td>654</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-binary-tree/">最大二叉树</a></td>
        <td>78.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.786</td>
    </tr>
    <tr>
        <td>327</td>
        <td>179</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-number/">最大数</a></td>
        <td>35.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.379</td>
    </tr>
    <tr>
        <td>328</td>
        <td>184</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-highest-salary/">部门工资最高的员工</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.463</td>
    </tr>
    <tr>
        <td>329</td>
        <td>287</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-duplicate-number/">寻找重复数</a></td>
        <td>62.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.25</td>
    </tr>
    <tr>
        <td>330</td>
        <td>1108</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/defanging-an-ip-address/">IP 地址无效化</a></td>
        <td>81.0%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.358</td>
    </tr>
    <tr>
        <td>331</td>
        <td>1113</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reported-posts/">报告的记录</a></td>
        <td>55.7%</td>
        <td>简单</td>
        <td>2</td>
        <td>1.937</td>
    </tr>
    <tr>
        <td>332</td>
        <td>89</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/gray-code/">格雷编码</a></td>
        <td>67.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.44</td>
    </tr>
    <tr>
        <td>333</td>
        <td>130</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/surrounded-regions/">被围绕的区域</a></td>
        <td>39.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.353</td>
    </tr>
    <tr>
        <td>334</td>
        <td>163</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/missing-ranges/">缺失的区间</a></td>
        <td>24.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.316</td>
    </tr>
    <tr>
        <td>335</td>
        <td>202</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/happy-number/">快乐数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.23</td>
    </tr>
    <tr>
        <td>336</td>
        <td>228</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/summary-ranges/">汇总区间</a></td>
        <td>50.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.754</td>
    </tr>
    <tr>
        <td>337</td>
        <td>309</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/">最佳买卖股票时机含冷冻期</a>
        </td>
        <td>51.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.388</td>
    </tr>
    <tr>
        <td>338</td>
        <td>412</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fizz-buzz/">Fizz Buzz</a></td>
        <td>62.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.37</td>
    </tr>
    <tr>
        <td>339</td>
        <td>540</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-element-in-a-sorted-array/">有序数组中的单一元素</a>
        </td>
        <td>60.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.824</td>
    </tr>
    <tr>
        <td>340</td>
        <td>549</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-longest-consecutive-sequence-ii/">二叉树中最长的连续序列</a>
        </td>
        <td>47.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.663</td>
    </tr>
    <tr>
        <td>341</td>
        <td>688</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/knight-probability-in-chessboard/">“马”在棋盘上的概率</a>
        </td>
        <td>45.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.62</td>
    </tr>
    <tr>
        <td>342</td>
        <td>290</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-pattern/">单词规律</a></td>
        <td>41.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.456</td>
    </tr>
    <tr>
        <td>343</td>
        <td>408</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-word-abbreviation/">有效单词缩写</a></td>
        <td>29.3%</td>
        <td>简单</td>
        <td>2</td>
        <td>2.097</td>
    </tr>
    <tr>
        <td>344</td>
        <td>536</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/construct-binary-tree-from-string/">从字符串生成二叉树</a>
        </td>
        <td>49.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.151</td>
    </tr>
    <tr>
        <td>345</td>
        <td>665</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-decreasing-array/">非递减数列</a></td>
        <td>21.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.438</td>
    </tr>
    <tr>
        <td>346</td>
        <td>260</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number-iii/">只出现一次的数字 III</a></td>
        <td>69.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.514</td>
    </tr>
    <tr>
        <td>347</td>
        <td>284</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/peeking-iterator/">顶端迭代器</a></td>
        <td>71.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.191</td>
    </tr>
    <tr>
        <td>348</td>
        <td>442</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-all-duplicates-in-an-array/">数组中重复的数据</a>
        </td>
        <td>63.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.625</td>
    </tr>
    <tr>
        <td>349</td>
        <td>524</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting/">通过删除字母匹配到字典里最长单词</a>
        </td>
        <td>44.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.647</td>
    </tr>
    <tr>
        <td>350</td>
        <td>97</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/interleaving-string/">交错字符串</a></td>
        <td>38.5%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.641</td>
    </tr>
    <tr>
        <td>351</td>
        <td>147</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insertion-sort-list/">对链表进行插入排序</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.418</td>
    </tr>
    <tr>
        <td>352</td>
        <td>171</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/excel-sheet-column-number/">Excel表列序号</a></td>
        <td>66.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.307</td>
    </tr>
    <tr>
        <td>353</td>
        <td>83</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list/">删除排序链表中的重复元素</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.12</td>
    </tr>
    <tr>
        <td>354</td>
        <td>177</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nth-highest-salary/">第N高的薪水</a></td>
        <td>43.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.308</td>
    </tr>
    <tr>
        <td>355</td>
        <td>435</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-overlapping-intervals/">无重叠区间</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.566</td>
    </tr>
    <tr>
        <td>356</td>
        <td>168</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/excel-sheet-column-title/">Excel表列名称</a></td>
        <td>36.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.332</td>
    </tr>
    <tr>
        <td>357</td>
        <td>261</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/graph-valid-tree/">以图判树</a></td>
        <td>44.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.584</td>
    </tr>
    <tr>
        <td>358</td>
        <td>268</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/missing-number/">缺失数字</a></td>
        <td>54.0%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.197</td>
    </tr>
    <tr>
        <td>359</td>
        <td>410</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/split-array-largest-sum/">分割数组的最大值</a></td>
        <td>40.4%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.05</td>
    </tr>
    <tr>
        <td>360</td>
        <td>572</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subtree-of-another-tree/">另一个树的子树</a></td>
        <td>43.0%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.42</td>
    </tr>
    <tr>
        <td>361</td>
        <td>714</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-with-transaction-fee/">买卖股票的最佳时机含手续费</a>
        </td>
        <td>61.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.455</td>
    </tr>
    <tr>
        <td>362</td>
        <td>1123</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-deepest-leaves/">最深叶节点的最近公共祖先</a>
        </td>
        <td>63.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.537</td>
    </tr>
    <tr>
        <td>363</td>
        <td>60</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutation-sequence/">第k个排列</a></td>
        <td>48.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.307</td>
    </tr>
    <tr>
        <td>364</td>
        <td>61</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-list/">旋转链表</a></td>
        <td>39.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.18</td>
    </tr>
    <tr>
        <td>365</td>
        <td>181</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/employees-earning-more-than-their-managers/">超过经理收入的员工</a>
        </td>
        <td>68.2%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.273</td>
    </tr>
    <tr>
        <td>366</td>
        <td>203</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-linked-list-elements/">移除链表元素</a></td>
        <td>43.9%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.16</td>
    </tr>
    <tr>
        <td>367</td>
        <td>223</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-area/">矩形面积</a></td>
        <td>42.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.76</td>
    </tr>
    <tr>
        <td>368</td>
        <td>241</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/different-ways-to-add-parentheses/">为运算表达式设计优先级</a></td>
        <td>70.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.662</td>
    </tr>
    <tr>
        <td>369</td>
        <td>307</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-mutable/">区域和检索 - 数组可修改</a></td>
        <td>53.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.796</td>
    </tr>
    <tr>
        <td>370</td>
        <td>338</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/counting-bits/">比特位计数</a></td>
        <td>74.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.281</td>
    </tr>
    <tr>
        <td>371</td>
        <td>363</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-sum-of-rectangle-no-larger-than-k/">矩形区域不超过 K
            的最大数值和</a></td>
        <td>34.3%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.408</td>
    </tr>
    <tr>
        <td>372</td>
        <td>450</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-node-in-a-bst/">删除二叉搜索树中的节点</a></td>
        <td>37.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.619</td>
    </tr>
    <tr>
        <td>373</td>
        <td>496</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-greater-element-i/">下一个更大元素 I</a></td>
        <td>62.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.353</td>
    </tr>
    <tr>
        <td>374</td>
        <td>515</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row/">在每个树行中找最大值</a></td>
        <td>58.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.66</td>
    </tr>
    <tr>
        <td>375</td>
        <td>564</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-closest-palindrome/">寻找最近的回文数</a></td>
        <td>13.9%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.642</td>
    </tr>
    <tr>
        <td>376</td>
        <td>568</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-vacation-days/">最大休假天数</a></td>
        <td>45.9%</td>
        <td>困难</td>
        <td>2</td>
        <td>2.754</td>
    </tr>
    <tr>
        <td>377</td>
        <td>875</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/koko-eating-bananas/">爱吃香蕉的珂珂</a></td>
        <td>39.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.766</td>
    </tr>
    <tr>
        <td>378</td>
        <td>1094</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/car-pooling/">拼车</a></td>
        <td>52.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.046</td>
    </tr>
    <tr>
        <td>379</td>
        <td>154</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii/">寻找旋转排序数组中的最小值
            II</a></td>
        <td>46.1%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.461</td>
    </tr>
    <tr>
        <td>380</td>
        <td>279</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/perfect-squares/">完全平方数</a></td>
        <td>53.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.215</td>
    </tr>
    <tr>
        <td>381</td>
        <td>315</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self/">计算右侧小于当前元素的个数</a>
        </td>
        <td>37.2%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.503</td>
    </tr>
    <tr>
        <td>382</td>
        <td>402</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-k-digits/">移掉K位数字</a></td>
        <td>27.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.518</td>
    </tr>
    <tr>
        <td>383</td>
        <td>413</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/arithmetic-slices/">等差数列划分</a></td>
        <td>59.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.691</td>
    </tr>
    <tr>
        <td>384</td>
        <td>417</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pacific-atlantic-water-flow/">太平洋大西洋水流问题</a></td>
        <td>39.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.886</td>
    </tr>
    <tr>
        <td>385</td>
        <td>87</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/scramble-string/">扰乱字符串</a></td>
        <td>44.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.768</td>
    </tr>
    <tr>
        <td>386</td>
        <td>135</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/candy/">分发糖果</a></td>
        <td>41.2%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.455</td>
    </tr>
    <tr>
        <td>387</td>
        <td>547</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-circles/">朋友圈</a></td>
        <td>54.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.337</td>
    </tr>
    <tr>
        <td>388</td>
        <td>686</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-string-match/">重复叠加字符串匹配</a></td>
        <td>33.3%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.807</td>
    </tr>
    <tr>
        <td>389</td>
        <td>367</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-perfect-square/">有效的完全平方数</a></td>
        <td>43.0%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.322</td>
    </tr>
    <tr>
        <td>390</td>
        <td>95</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-binary-search-trees-ii/">不同的二叉搜索树 II</a>
        </td>
        <td>61.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.309</td>
    </tr>
    <tr>
        <td>391</td>
        <td>190</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-bits/">颠倒二进制位</a></td>
        <td>54.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.247</td>
    </tr>
    <tr>
        <td>392</td>
        <td>256</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-house/">粉刷房子</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>1.08</td>
    </tr>
    <tr>
        <td>393</td>
        <td>323</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/number-of-connected-components-in-an-undirected-graph/">无向图中连通分量的数目</a>
        </td>
        <td>54.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.656</td>
    </tr>
    <tr>
        <td>394</td>
        <td>59</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix-ii/">螺旋矩阵 II</a></td>
        <td>76.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.218</td>
    </tr>
    <tr>
        <td>395</td>
        <td>180</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/consecutive-numbers/">连续出现的数字</a></td>
        <td>48.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.368</td>
    </tr>
    <tr>
        <td>396</td>
        <td>237</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-node-in-a-linked-list/">删除链表中的节点</a></td>
        <td>79.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.105</td>
    </tr>
    <tr>
        <td>397</td>
        <td>557</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string-iii/">反转字符串中的单词 III</a>
        </td>
        <td>69.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.208</td>
    </tr>
    <tr>
        <td>398</td>
        <td>771</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jewels-and-stones/">宝石与石头</a></td>
        <td>81.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.215</td>
    </tr>
    <tr>
        <td>399</td>
        <td>704</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-search/">二分查找</a></td>
        <td>52.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.237</td>
    </tr>
    <tr>
        <td>400</td>
        <td>872</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/leaf-similar-trees/">叶子相似的树</a></td>
        <td>62.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.564</td>
    </tr>
    <tr>
        <td>401</td>
        <td>535</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/encode-and-decode-tinyurl/">TinyURL 的加密与解密</a>
        </td>
        <td>81.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.765</td>
    </tr>
    <tr>
        <td>402</td>
        <td>1043</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-array-for-maximum-sum/">分隔数组以得到最大和</a>
        </td>
        <td>63.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.405</td>
    </tr>
    <tr>
        <td>403</td>
        <td>1142</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/user-activity-for-the-past-30-days-ii/">过去30天的用户活动
            II</a></td>
        <td>35.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.634</td>
    </tr>
    <tr>
        <td>404</td>
        <td>64</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-path-sum/">最小路径和</a></td>
        <td>64.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.102</td>
    </tr>
    <tr>
        <td>405</td>
        <td>1146</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/snapshot-array/">快照数组</a></td>
        <td>22.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.617</td>
    </tr>
    <tr>
        <td>406</td>
        <td>131</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-partitioning/">分割回文串</a></td>
        <td>65.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.286</td>
    </tr>
    <tr>
        <td>407</td>
        <td>150</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/evaluate-reverse-polish-notation/">逆波兰表达式求值</a>
        </td>
        <td>49.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.209</td>
    </tr>
    <tr>
        <td>408</td>
        <td>165</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/compare-version-numbers/">比较版本号</a></td>
        <td>38.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.376</td>
    </tr>
    <tr>
        <td>409</td>
        <td>193</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-phone-numbers/">有效电话号码</a></td>
        <td>27.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.616</td>
    </tr>
    <tr>
        <td>410</td>
        <td>222</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-complete-tree-nodes/">完全二叉树的节点个数</a></td>
        <td>66.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.374</td>
    </tr>
    <tr>
        <td>411</td>
        <td>229</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element-ii/">求众数 II</a></td>
        <td>42.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.502</td>
    </tr>
    <tr>
        <td>412</td>
        <td>324</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wiggle-sort-ii/">摆动排序 II</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.495</td>
    </tr>
    <tr>
        <td>413</td>
        <td>328</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/odd-even-linked-list/">奇偶链表</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.221</td>
    </tr>
    <tr>
        <td>414</td>
        <td>352</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/data-stream-as-disjoint-intervals/">将数据流变为多个不相交区间</a></td>
        <td>51.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.704</td>
    </tr>
    <tr>
        <td>415</td>
        <td>382</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-random-node/">链表随机节点</a></td>
        <td>54.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.936</td>
    </tr>
    <tr>
        <td>416</td>
        <td>388</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-absolute-file-path/">文件的最长绝对路径</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.198</td>
    </tr>
    <tr>
        <td>417</td>
        <td>505</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-maze-ii/">迷宫 II</a></td>
        <td>43.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.802</td>
    </tr>
    <tr>
        <td>418</td>
        <td>628</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-of-three-numbers/">三个数的最大乘积</a>
        </td>
        <td>48.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.414</td>
    </tr>
    <tr>
        <td>419</td>
        <td>662</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-width-of-binary-tree/">二叉树最大宽度</a></td>
        <td>35.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.804</td>
    </tr>
    <tr>
        <td>420</td>
        <td>691</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/stickers-to-spell-word/">贴纸拼词</a></td>
        <td>43.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.252</td>
    </tr>
    <tr>
        <td>421</td>
        <td>794</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-tic-tac-toe-state/">有效的井字游戏</a></td>
        <td>32.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.112</td>
    </tr>
    <tr>
        <td>422</td>
        <td>939</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-area-rectangle/">最小面积矩形</a></td>
        <td>42.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.513</td>
    </tr>
    <tr>
        <td>423</td>
        <td>969</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pancake-sorting/">煎饼排序</a></td>
        <td>62.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.073</td>
    </tr>
    <tr>
        <td>424</td>
        <td>291</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-pattern-ii/">单词规律 II</a></td>
        <td>55.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.18</td>
    </tr>
    <tr>
        <td>425</td>
        <td>371</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sum-of-two-integers/">两整数之和</a></td>
        <td>53.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.283</td>
    </tr>
    <tr>
        <td>426</td>
        <td>617</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-binary-trees/">合并二叉树</a></td>
        <td>74.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.173</td>
    </tr>
    <tr>
        <td>427</td>
        <td>752</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/open-the-lock/">打开转盘锁</a></td>
        <td>48.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.641</td>
    </tr>
    <tr>
        <td>428</td>
        <td>843</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/guess-the-word/">猜猜这个单词</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.052</td>
    </tr>
    <tr>
        <td>429</td>
        <td>981</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/time-based-key-value-store/">基于时间的键值存储</a></td>
        <td>35.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.556</td>
    </tr>
    <tr>
        <td>430</td>
        <td>272</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/closest-binary-search-tree-value-ii/">最接近的二叉搜索树值
            II</a></td>
        <td>57.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.781</td>
    </tr>
    <tr>
        <td>431</td>
        <td>281</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/zigzag-iterator/">锯齿迭代器</a></td>
        <td>72.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.722</td>
    </tr>
    <tr>
        <td>432</td>
        <td>383</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/ransom-note/">赎金信</a></td>
        <td>51.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.295</td>
    </tr>
    <tr>
        <td>433</td>
        <td>491</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/increasing-subsequences/">递增子序列</a></td>
        <td>45.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.855</td>
    </tr>
    <tr>
        <td>434</td>
        <td>548</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/split-array-with-equal-sum/">将数组分割成和相等的子数组</a>
        </td>
        <td>31.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>2.421</td>
    </tr>
    <tr>
        <td>435</td>
        <td>364</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nested-list-weight-sum-ii/">加权嵌套序列和 II</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.857</td>
    </tr>
    <tr>
        <td>436</td>
        <td>96</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-binary-search-trees/">不同的二叉搜索树</a></td>
        <td>64.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.166</td>
    </tr>
    <tr>
        <td>437</td>
        <td>1114</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-in-order/">按序打印</a></td>
        <td>58.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.298</td>
    </tr>
    <tr>
        <td>438</td>
        <td>107</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii/">二叉树的层次遍历
            II</a></td>
        <td>64.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.15</td>
    </tr>
    <tr>
        <td>439</td>
        <td>142</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle-ii/">环形链表 II</a></td>
        <td>48.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.12</td>
    </tr>
    <tr>
        <td>440</td>
        <td>172</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/factorial-trailing-zeroes/">阶乘后的零</a></td>
        <td>39.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.2</td>
    </tr>
    <tr>
        <td>441</td>
        <td>196</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-duplicate-emails/">删除重复的电子邮箱</a></td>
        <td>59.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.315</td>
    </tr>
    <tr>
        <td>442</td>
        <td>231</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/power-of-two/">2的幂</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.176</td>
    </tr>
    <tr>
        <td>443</td>
        <td>255</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/verify-preorder-sequence-in-binary-search-tree/">验证前序遍历序列二叉搜索树</a>
        </td>
        <td>46.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.466</td>
    </tr>
    <tr>
        <td>444</td>
        <td>276</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-fence/">栅栏涂色</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.19</td>
    </tr>
    <tr>
        <td>445</td>
        <td>359</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/logger-rate-limiter/">日志速率限制器</a></td>
        <td>68.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.198</td>
    </tr>
    <tr>
        <td>446</td>
        <td>687</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-univalue-path/">最长同值路径</a></td>
        <td>38.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.422</td>
    </tr>
    <tr>
        <td>447</td>
        <td>182</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/duplicate-emails/">查找重复的电子邮箱</a></td>
        <td>78.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.152</td>
    </tr>
    <tr>
        <td>448</td>
        <td>195</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/tenth-line/">第十行</a></td>
        <td>43.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.405</td>
    </tr>
    <tr>
        <td>449</td>
        <td>220</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate-iii/">存在重复元素 III</a></td>
        <td>25.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.294</td>
    </tr>
    <tr>
        <td>450</td>
        <td>561</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/array-partition-i/">数组拆分 I</a></td>
        <td>69.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.196</td>
    </tr>
    <tr>
        <td>451</td>
        <td>676</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-magic-dictionary/">实现一个魔法字典</a></td>
        <td>55.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.077</td>
    </tr>
    <tr>
        <td>452</td>
        <td>682</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/baseball-game/">棒球比赛</a></td>
        <td>65.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.304</td>
    </tr>
    <tr>
        <td>453</td>
        <td>274</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/h-index/">H指数</a></td>
        <td>37.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.42</td>
    </tr>
    <tr>
        <td>454</td>
        <td>404</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sum-of-left-leaves/">左叶子之和</a></td>
        <td>53.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.229</td>
    </tr>
    <tr>
        <td>455</td>
        <td>578</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/get-highest-answer-rate-question/">查询回答率最高的问题</a>
        </td>
        <td>43.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.253</td>
    </tr>
    <tr>
        <td>456</td>
        <td>673</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence/">最长递增子序列的个数</a>
        </td>
        <td>33.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.573</td>
    </tr>
    <tr>
        <td>457</td>
        <td>764</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-plus-sign/">最大加号标志</a></td>
        <td>46.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.379</td>
    </tr>
    <tr>
        <td>458</td>
        <td>784</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/letter-case-permutation/">字母大小写全排列</a></td>
        <td>62.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.357</td>
    </tr>
    <tr>
        <td>459</td>
        <td>801</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-swaps-to-make-sequences-increasing/">使序列递增的最小交换次数</a>
        </td>
        <td>36.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.06</td>
    </tr>
    <tr>
        <td>460</td>
        <td>989</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-to-array-form-of-integer/">数组形式的整数加法</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.415</td>
    </tr>
    <tr>
        <td>461</td>
        <td>998</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-binary-tree-ii/">最大二叉树 II</a></td>
        <td>57.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.265</td>
    </tr>
    <tr>
        <td>462</td>
        <td>1033</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/moving-stones-until-consecutive/">移动石子直到连续</a>
        </td>
        <td>36.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.61</td>
    </tr>
    <tr>
        <td>463</td>
        <td>1040</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/moving-stones-until-consecutive-ii/">移动石子直到连续
            II</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.726</td>
    </tr>
    <tr>
        <td>464</td>
        <td>1213</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/intersection-of-three-sorted-arrays/">三个有序数组的交集</a></td>
        <td>74.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.316</td>
    </tr>
    <tr>
        <td>465</td>
        <td>1075</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/project-employees-i/">项目员工 I</a></td>
        <td>52.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.224</td>
    </tr>
    <tr>
        <td>466</td>
        <td>1076</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/project-employees-ii/">项目员工II</a></td>
        <td>49.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.29</td>
    </tr>
    <tr>
        <td>467</td>
        <td>1216</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome-iii/">验证回文字符串 III</a></td>
        <td>47.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.285</td>
    </tr>
    <tr>
        <td>468</td>
        <td>52</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/n-queens-ii/">N皇后 II</a></td>
        <td>77.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.251</td>
    </tr>
    <tr>
        <td>469</td>
        <td>58</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/length-of-last-word/">最后一个单词的长度</a></td>
        <td>32.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>470</td>
        <td>159</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-substring-with-at-most-two-distinct-characters/">至多包含两个不同字符的最长子串</a>
        </td>
        <td>51.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.771</td>
    </tr>
    <tr>
        <td>471</td>
        <td>170</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum-iii-data-structure-design/">两数之和 III -
            数据结构设计</a></td>
        <td>40.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.006</td>
    </tr>
    <tr>
        <td>472</td>
        <td>250</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-univalue-subtrees/">统计同值子树</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.247</td>
    </tr>
    <tr>
        <td>473</td>
        <td>503</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-greater-element-ii/">下一个更大元素 II</a></td>
        <td>52.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.345</td>
    </tr>
    <tr>
        <td>474</td>
        <td>593</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-square/">有效的正方形</a></td>
        <td>41.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.932</td>
    </tr>
    <tr>
        <td>475</td>
        <td>616</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-bold-tag-in-string/">给字符串添加加粗标签</a></td>
        <td>43.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.88</td>
    </tr>
    <tr>
        <td>476</td>
        <td>733</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flood-fill/">图像渲染</a></td>
        <td>52.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.401</td>
    </tr>
    <tr>
        <td>477</td>
        <td>742</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/closest-leaf-in-a-binary-tree/">二叉树最近的叶节点</a></td>
        <td>45.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>2.077</td>
    </tr>
    <tr>
        <td>478</td>
        <td>788</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotated-digits/">旋转数字</a></td>
        <td>58.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.591</td>
    </tr>
    <tr>
        <td>479</td>
        <td>641</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-circular-deque/">设计循环双端队列</a></td>
        <td>49.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.658</td>
    </tr>
    <tr>
        <td>480</td>
        <td>120</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/triangle/">三角形最小路径和</a></td>
        <td>63.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.125</td>
    </tr>
    <tr>
        <td>481</td>
        <td>183</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/customers-who-never-order/">从不订购的客户</a></td>
        <td>65.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.185</td>
    </tr>
    <tr>
        <td>482</td>
        <td>248</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/strobogrammatic-number-iii/">中心对称数 III</a></td>
        <td>42.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.778</td>
    </tr>
    <tr>
        <td>483</td>
        <td>310</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-height-trees/">最小高度树</a></td>
        <td>33.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.618</td>
    </tr>
    <tr>
        <td>484</td>
        <td>337</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber-iii/">打家劫舍 III</a></td>
        <td>55.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.222</td>
    </tr>
    <tr>
        <td>485</td>
        <td>345</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-vowels-of-a-string/">反转字符串中的元音字母</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.171</td>
    </tr>
    <tr>
        <td>486</td>
        <td>372</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/super-pow/">超级次方</a></td>
        <td>37.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.928</td>
    </tr>
    <tr>
        <td>487</td>
        <td>407</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water-ii/">接雨水 II</a></td>
        <td>34.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.928</td>
    </tr>
    <tr>
        <td>488</td>
        <td>655</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-binary-tree/">输出二叉树</a></td>
        <td>53.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.947</td>
    </tr>
    <tr>
        <td>489</td>
        <td>716</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-stack/">最大栈</a></td>
        <td>42.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.265</td>
    </tr>
    <tr>
        <td>490</td>
        <td>727</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-window-subsequence/">最小窗口子序列</a></td>
        <td>39.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.056</td>
    </tr>
    <tr>
        <td>491</td>
        <td>889</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/">根据前序和后序遍历构造二叉树</a>
        </td>
        <td>61.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.974</td>
    </tr>
    <tr>
        <td>492</td>
        <td>897</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/increasing-order-search-tree/">递增顺序查找树</a></td>
        <td>65.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.472</td>
    </tr>
    <tr>
        <td>493</td>
        <td>934</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-bridge/">最短的桥</a></td>
        <td>42.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.899</td>
    </tr>
    <tr>
        <td>494</td>
        <td>509</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fibonacci-number/">斐波那契数</a></td>
        <td>66.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.13</td>
    </tr>
    <tr>
        <td>495</td>
        <td>271</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/encode-and-decode-strings/">字符串的编码与解码</a></td>
        <td>50.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.578</td>
    </tr>
    <tr>
        <td>496</td>
        <td>326</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/power-of-three/">3的幂</a></td>
        <td>46.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.175</td>
    </tr>
    <tr>
        <td>497</td>
        <td>373</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-k-pairs-with-smallest-sums/">查找和最小的K对数字</a>
        </td>
        <td>40.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.614</td>
    </tr>
    <tr>
        <td>498</td>
        <td>385</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/mini-parser/">迷你语法分析器</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.954</td>
    </tr>
    <tr>
        <td>499</td>
        <td>446</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/arithmetic-slices-ii-subsequence/">等差数列划分 II -
            子序列</a></td>
        <td>31.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.322</td>
    </tr>
    <tr>
        <td>500</td>
        <td>493</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-pairs/">翻转对</a></td>
        <td>22.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.663</td>
    </tr>
    </tbody>
</table>